Error: Cannot find symbol: Help!

[BenH]

Hi there!

I have almost finished my project, but I keep getting the error cannot find symbol error. I don't know why. I made sure everything was spelled correctly. Here is my code maybe you can help! I am getting the error at line 31 in the InventoryAdvanced class.

/*
Author: Ben Hartnett
Sources: Java: A Beginner's Guide
Source 2: Monster example posted on student forums
Date Retrieved: 1-26-2012
*/

public class InventoryAdvanced {

public static void main(String args[]){

		//Define the calculation variables
		double c1;
		double c2;
		double c3;

		//Declare the calculation variables
		c1 = 13.00;
		c2 = 5.00;
		c3 = 10.00;

		//Declare the 5% restocking fee
		double fee = .05;

		//Create the objects
		InventoryDefine swordstone = new InventoryDefine("Sword In The Stone Movie", 1, 10, 13.00, 130.00);
		InventoryDefine hercules = new InventoryDefine("Hercules Movie", 2, 20, 5.00, 100.00);
		InventoryDefine mermaid = new InventoryDefine("The Little Mermaid Movie", 3, 30, 10.00, 300.00);
        InventorySort sortThis = new InventorySort();
		InventoryCal cal = new InventoryCal();
		SwordStone movie = new SwordStone();

		//Use an object to store the array
   		InventoryDefine[] inventoryArray = new InventoryDefine[3];

		//Declare the arrays
   		inventoryArray[0] = swordstone;
   		inventoryArray[1] = hercules;
   		inventoryArray[2] = mermaid;

		//Call the method from the sortThis object
		sortThis.Sort(inventoryArray);

		//Call the method from InventoryCal
		cal.calVar(c1, c2, c3);

		//Override the method from InventoryInherit
		movie.calVar(c1, fee);

	}
}

/**
/*
Author: Ben Hartnett
Sources: Java: A Beginner's Guide
Source 2: Monster example posted on student forums
Date Retrieved: 1-26-2012
*/

public class InventoryCal {

	//Create a method that multiplies the variables
	public void calVar(double m1, double m2, double m3){

		//Create the calculation variable
		double calEquals;

		//Create the equation
		calEquals = m1 + m2 + m3;

		//Display the result
		System.out.println("Total inventory value:" + calEquals);

 	}

	public class SwordStone extends InventoryCal {

		//Create the calculation method
		public void calVar(double m1, double restockFee){

		//Create the calculation variable
		double calEquals;

		//Create the equation
		calEquals = m1 + 10 * restockFee;

		//Display the result
		System.out.println("Sword In The Stone product value with restocking fee:" + calEquals);

		}

	}
}

/*
Author: Ben Hartnett
Sources: Java: A Beginner's Guide
Source 2: Monster example posted on student forums
Date Retrieved: 1-26-2012
*/

//Create the class while it implements the Comparable
public class InventoryDefine implements Comparable<InventoryDefine> {

	//Define the variables
	private String inventoryName;
	private int inventoryNumber;
	private int inventoryStock;
	private double inventoryPrice;
	private double inventoryValue;

	//Declare the constructor
	public InventoryDefine(String inventoryName, int inventoryNumber, int inventoryStock, double inventoryPrice, double inventoryValue){

		this.inventoryName = inventoryName;
		this.inventoryNumber = inventoryNumber;
		this.inventoryStock = inventoryStock;
		this.inventoryPrice = inventoryPrice;
		this.inventoryValue = inventoryValue;

	}

	//Use the toString method
	public String toString() {

		return inventoryName + ", " + inventoryNumber + ", " + inventoryStock + ", " + inventoryPrice + ", " + inventoryValue; //Return values

   }

	//Use the compareTo method
	public int compareTo(InventoryDefine id){

		return this.inventoryNumber - id.inventoryNumber; //Return values

	}
}

/*
Author: Ben Hartnett
Sources: Java: A Beginner's Guide
Source 2: Monster example posted on student forums
Date Retrieved: 1-26-2012
*/

import java.util.Arrays;

public class InventorySort {

	public void Sort(InventoryDefine[] array){

            Arrays.sort(array);

            for (int i = 0; i < 3; i++){

            System.out.println(array[i]);

            }

  	}
}

[Fubarable]

Your SwordStone class is defined inside of InventoryCal for no good reason that I can see and because of this, the compiler can't find it. Get it into its own Java class.

[BenH]

Your SwordStone class is defined inside of InventoryCal for no good reason that I can see and because of this, the compiler can't find it. Get it into its own Java class.

This is for a school assignment. I am supposed to create a subclass of the InventoryCal class. I am supposed to show my knowledge of inheritance. Did I not do it correctly?

[Fubarable]

This is for a school assignment. I am supposed to create a subclass of the InventoryCal class. I am supposed to show my knowledge of inheritance. Did I not do it correctly?

No you didn't. Again, it's not supposed to be an inner class. Give it its own file (again!).